Transmission and Differential.pdf - Ken Gilbert

3-4 [W3E0] SERVICE PROCEDURE
3. Rear Differential (T-Type)
(6) Measure the crown gear-to-drive pinion
backlash. Set magnet base on differential carrier.
Align contact point of dial gauge with tooth
face of crown gear, and move crown gear while
holding drive pinion still. Read value indicated
on dial gauge.
Backlash:
0.10 — 0.20 mm (0.0039 — 0.0079 in)
G3M1047
(7) At the same time, measure the turning
resistance of drive pinion. Compared with the
resistance when differential case is not
installed, if the increase of the resistance is not
within the specified range, readjust side bearing
retainer shims.
NOTE:
If measured backlash is not within specified range,
repeat procedure for side bearing retainer shims
adjustment.
Turning resistance increase:
2.9 — 10.8 N (0.3 — 1.1 kg, 0.7 — 2.4 lb)
15) Re-check crown gear-to-pinion backlash.
Backlash:
0.10 — 0.20 mm (0.0039 — 0.0079 in)
G3M1047
48
16) Check the crown gear runout on its back
surface, and make sure pinion and crown gear
rotate smoothly.
Limit of runout:
0.05 mm (0.0020 in)
G3M1048
17) Checking and adjusting tooth contact of crown
gear
(1) Apply an even coat of red lead on both
sides of three or four teeth on the crown gear.
Check the contact pattern after rotating crown
gear several revolutions back and forth until a
definite contact pattern appears on the crown
gear.
(2) When the contact pattern is incorrect, readjust
according to the instructions given in “Tooth
contact pattern”.
NOTE:
Be sure to wipe off red lead completely after
adjustment is completed.
18) If proper tooth contact is not obtained, once
again adjust the drive pinion height, changing RH
and LH side bearing retainer shims and the hypoid
gear backlash.